Combined sanitary water filter, aerator, and cooler.



D. E. BROWN. COMBINED SANITARY WATER FILTER, AEBAToR, AND COOLER. APPLICATIYON FILED APR. 28r19l5- 1.174,.384. Patented M2111 1916..

formula/20m mo-y concermi, 1 r

Be it known that I, Dnannnn L. Baown,

()ceanpark, in'the county oitILos Angeles and State *ot'"California. have inrented a new; and useful Combined Sanitary ater Eilter. iterator,fand Cooler, otuvhich the following is aspecifioation.

Qbj eots'offthis invention are to ter filter and cooler which will a superior manner-fseparate the; impurities fron'r wateryand dodge the same in accessible plaecs-wheive they an be easily gotten and ren'ioredwith minimum disturbance of the filtering medium; to provide superior istributing waterto the filtering oh inanner as to secure superior to "avoid the, formation of o ghl. said medium; to provide alsilperior arrangement whereby the liquid @tolbefiltered till he made'to pass through flfiltering material gently. and fwithout ha'nnetforn'iing itendencies; to provide againstlstagnanoyof the liquid in the filter wing- 'materia ltog provideifor aerating the water-,5 and to' "proi'idefforv maintaining raporatio on the, upper unfilled o the watencooling chamber. i a he invention may be carried outin varions; iiraysandyl do not limit myself spefinally toany peculiar shape or formation of he parts hereinafter described, it only ei required that the principle of the jeinbodiedr r i o a A r The invention includes rariousparts and onibination of; parts going to make up the oinplete appliance hereinafter set forth and claimed in the appended claims.

theinrentiominthe form I at present deem mostadris a Q a p y I i {an elevation;mainly in axial tioxn showing a water filter. aerator and Qtthe middle of the riew fila l is omitted at the left to ex tr ring :i hat mam smear said wall is shown to exemplifywglazed and porous portions of said wall. Fig

chandler "with f distributing plate in place.

' lg. a detached enlarged side elevation nf-the sluice-cap for. the hollow dam. p

The receivergwl ich is tlidreceptacle into I Specification of Letters E'atent. Application filed April 28, 1915. Serial No. 24,600.

citizen. ofsth-e lhiitedjStates, residing at .ing annular lip 7.

portion invention jihereinafter claimed be suitably The accompanying drawings illustrate er"fr-obstructed ain "acrordance with this a chamber, and at'the right a portion of the;

. PATENT OFHCEQ Eiex erior, or ocnaiirnnx. oanrronnm.

iii/remain SANITARY newsm n, AEIl-ATOR. AND COOLER.

" "atented M21137, 1916.

which the water to be filtered is placed. is

constructedwith a. wall 1, preferably cylindrical. and an: annular bottom 2 integral with the wall. and having a central opening 3 surrounded by a filter plate seat 4 and by a gasliet seat in'the form of a Clltll1- nel the under-side of said bottom Q be iug providedwith an annular concavity 6 whereby the margin of the central opening 3 is in the form of a do\\"n\\"ardly depend other suitable material is seated in the channel 5, and a permeable closure that will serve as a'filtr mediunn being in the instance shown, a porous stone plate, is tightly A gasket 8 of asbestos or so as to practically form a water tight joint between the bottom 2 and the plate 9 to close the opening in the bottom of the receptaele so that water will ooze through said plate downward from the receptacle when charged with rate: to be filtered.

A cover 10 closes the top of the reservoir 1. At the periphery of the bottom 2 of the receiver an annular seat 11 is formed to fit on the top of the filter chamber comprising a wall formed with an upper glazed portion 12, a lower porous and unglazed portion 13 having a downwardly projecting chine 11; said porous'portlon being permeable to w:

ter and integral with and surrounding an impervious glazed floor 15 having at a central portion thereof a hollow dam 16 terminating at a considerable height above the I top of the floor 15, in a depressed. top 17 with centrally-arranged outlet 18 "therein.

VVithin said filter chamber is arranged a support 19 carrying a distributing plate 20.

In the form shown the support 19 is an annular shoulder extending inwardly entirely around inside the filter chamber at a heightabove the glazed floor thereof, considerably greater than the height of the dam. Saidplate is provided at its periphery with an upwardly extending bead 21,to the foot of. v o --Which the top surface slopes gently from a poseftli'e inner face of tliefwall of the filter central apex 22. The distributing-plate is perforated at intervals as at 523 '24, 25 sothat liquid falling onto the plate at or near the apex; and thence flowing down over the all) , finally maimed by the bead and directed down through the holes at the foot thereof. Thus all the liquid falling on the plate will drain therefrom. Channels 26, 27 areprovided in the top of the plate, each leading down the slope fronra point somewhat below the apex to a perforation spaced considerably from the apex, the purpose being to insure the delivery of liquid in about equal proportions to the several. holes, in consequence of which the liquid dripping down from the porous stone plate 9 onto the upper apex region of the conical distributing plate will be distributed over the cross-sectional area of the filter chamber and will drip down into said filter chamber from the margins of the several holes 23, 24, 25. In-

- side said filter chamber and'resting on the glazed floor 15, 'a hollow cover is provided for the hollow dam, the same constitutlng a then the layers 35, 34, 33 and 32 are succes-,

sluice cap 28 having an internal diameter greater than the external diameter of the hollow dam l6 and spaced apart from the dam all around the same to. form a sluiceway. Ports 29 are provided around the foot of the sluice cap 28, there thus being a paspagefrom the filter chamber into the sluiceway to admit liquid to the sluice-way 30 b etween the sluice cap 28 and the hollow dam 1G. The top of the sluice cap extends above and is spaced apart'from the top of the hollow dam and is at" a level somewhat below that of the seat 'for the distributing plate 20 and the plate support 19, so that there is an air space 31 bet-ween theunderside of the distributing plate and the top of the sluice cap. i l

Suitable filtering and water purifying 1 material is provided in the filter chamber entering the ports 'turbed condition;

and by preference the same is arranged in layers as shown, comprising a top layer 32 of crushed crystal quartz an upper layer 33 of crushed willow charcoal; a lower layer 3i of pulverized bone carbon, and a sub-layer 35 of crushed crystal quartz; tlie sub-layer extending sufficiently above the level of the ports 29 to prevent the bone carbon from The top layer 32 of crushed'crystal quartz is for the purpose of holding down the willow charcoal and maintaining the surface of the same in an undis The surface I of the top layer 32 is considerably below the distributing plate, thus providing an air space 36 and downward underneath the porous unglazed portions 13, ll of the filter chamber,-

so that any liquid that may seep through and drip or flow down from said portions 13, i l will fall onto the swell 38 at the top of'the water cooler, thus moistening the upper portion of the water cooler so that" evaporation will cool the empty upper-por tion of said water cooler chamber. An addi? i tion to this cooling ellect is that: upon'the contentsof the filter chamber resulting from the evaporation of the liquid from the lower portions 13, 14 of, such chamber.

In practice, to assemble the parts the filten chamber, being fresh and. clean inside, is first supplied with the sluice cap 28 and sivelypacked into place in the order named.

Then'the distributing plate 20 is put in place therefor and then the filter chamber thus completed is set in place on. top of the water cooler. The receiver also being' fresh and clean is supplied with agasket 8 in the channel 4 and the porous stone plate filter 9 is-then fitted into its seat and the receiver thus c'ompleted'isplacedon top of the filter chamber and is filled with water ,to be filtered. Then the cover 10'may be put in place and the filtering operation goeson as follows The liquid passing down through the porous plate drips therefrom through the airspace formed by the central opening 3 and -falls upon the'apex area of the distributing plate down which the "liquid flows gently on the inclined surface thward the. rini head 21, portions of the liquid on itsway falling through various holes through the distributing plate, portions being collected in the channels on the upper surface o'f'the distributing plate and flowing down to the holes at the lower ends of such channels. 'In this way the liquid is widely distributed and drips from the under-' face of the distributing plate down through the air space 36 on tothe top layer in the filter chamber. The liquid moistens and finally permeates the layers of pulverized material in the filter chamber and flows through the ports 29 into, and gradually rises in, the sluice-way 30 between the sluice cap 28 and the dam 16 until the liquid reaches the top of the dam, over whichit flows into the central depression in the top 17 and thence down through the outlet 18 whence it flows in drops through the air space 35) in the water cooler, from which it may be drawn through the faucet 40" The space at 3 above the'distributing plate, the air space 36 below the distributing plate and liquid thus successively falls through the air the air space 39 below the depressed top of the hollow dam. The liquid held by the dam suhmerges the charcoal and'the filter material below the level of the top of the dam.

The filter if chamber mountedpn thewater cooler and theWaterreceptacIe is type; soithat therefis suflicient passage for alrtto allo thewliquid to passinto the water 'ooler and torfallowliquid kto flow freely depressedetopflof the hollow damse'rves to concentrate thegliquid to, the central opening a overfthedam centrally down throughthe air jfspaceiin the water cooler, sothatitheliquid ep h- Attention is directed to the cooling effect the moistened upper air spaceinclosing {walls-of the'iwater cooler; the tendency of which is to reduce" the temperature of the air: in the cooler, so that thedropsof water falling from the top of the dam down hroughthe air space willbe initially cooled in; the air cooler. Attention is also directed to? the draining of liqluidrover the sloping from the filtering materialjto'the outer wall and throughthe lower' porous portion of suchouter;filter chamber walls; the result being that the water, which; during the -period of ll SSllbml gGS]t'he filtering mate rial; will be "drained olf within a few days fter the supply of water has been cut off above thehlter chamber. Thereby stagnation inl thefilter chamber is avoided. Parm2 ofthewaterreceptacle lysaid rec-eptacle having an annular-gasket seat 5 in f the top of its floor and ardepression 4 exgunolostruct eiil-= opening 3'; and. the porous stone plate: 9 in said depression loridging'over liquid percolating through said plate ma i freelypass down onto the central part of the T- "distributing plate 20. By this construction and arrangement the operation of cleaning that when the water has percolated over the receptacle 1 said receptacle can be perfectly cleaned by simply Washing out the interior andth'us removing the impurities intercepted by the porous stone plate, and by inverting the receptacle 1 access is given tol-enable'the attendant to thoroughly clean the lip '7, if any impurities are foundadherng thereto. At thesame time the distributing plate 22 is bar-ed to beoleaned by simi ply wipingofi its surface. This work may be performed Withany desired frequency with but little loss of time and with great 1 maintained: in the filter chamber by mountedupon the filter chamberin the usual manner of water filters and coolers of this c therefrom when the faucet is open. a The a iii saidtop; thus to direct the liquid flowing ll drip through an1 air space of maximum" efore reachingthemain body of thelliquid glazed lioor fronrthe sluice-way and also ticularfattentionfis also directed tothe bot- 1 tending inwardly from the gasket seat and terminating in an annular rim .or lnside faceof the l1p7,tliesame bemg around an y said unohstriicted'opening through which the the filter is greatly facilitated, for the reason convenience; and owing'to the high water the dam there is but very little tendency of should be replaced. By reason of the unob- 3 structed opening over the center of the dis tributing plate the impurities are. deposited over a restricted area of the distributing plate, so that when the receptacle 1 isre moved the attendant may by inspection readily determine to what extent impurities are being deposited from time to time and thus gain a fair idea as to when it is advi'sable to remove the distributing plate. It i is to be noted that by the construction shown in; this respect the greatest convenience is offered 'andthe greatest inducement is: given. to the attendant to keep-the filter clean, for the impurities in the bottom o'f the receptacle serve as a"-reminder that cleansing should be effected. These are always open ,to view when the cover .10 is removed from the'receptacle, and naturally when the attendant has removed the receptacle for the purpose of washing out the sedimentary deposits therein the distributing plate is bared foriinspection. Thus in large measure the,

filter is constituted to causethe attendant to keep it clean.

' I claim:

1. In a filter a an opening through its bottom; a porous closure closing said opening; a filter chamber below the water receptacle; a distributing plate supported in the filter chamber below said opening'and provided with. holes to distribute liquid falling onsaid distributing plate, .said'filter chamber having a hollow dam extending up thereinto and said dam having an opening at the top; a cap extending over said dam and forming a sluice-way between the dam and the sluicecap, therebeing a passage from the filter water receptacle having chamber into said sluice-way and filter material between the passage and the level of the top of the dam. i

2. In a filter a water receptacle having an opening through its bottom; a porous closure closing sai opening; a filter chamber below the water receptacle; a distributing plate supported in the filter chamber below said opening and provided with holes to distribute liquid falling on said "distributing plate, said filter chamber having a hollow dam extending up thereinto, said dam having an opening at the top; a cap extending over said dam'and forming a sluice-way'betwcen the dam and the cap, there being a pravege from the filter chamber to the bottom of the sluiceway; a water coolei' below the filter chamber to receive liquid. from the opening in the top of the dam and forming an air space through which the liquid passing from the dam may drip and thereby become aerated; and filter material between the passage and the level.

of the of top of the dam;

y '3. In a filter, a filter chamber provided at its uj'iper port-ion with a glazed surface and having below such glazed surface a permeablev portion through which liquid- -may-seep 110m the lowerpart of the filter thus to drain. liquid from; the

chamber, chamber;

4.111 a filter, a filter .cha1nber provided at its uppe'r portion with a glazed'surface and having below such glazed surface a permeable portion through which. liquid may seep from. the lower part of the filter-chamber, thus to drain liquidfrom the chamber; and a water 'cooler below the filter chamber, said water cooler having a swell at its upper portion to receive the liquid passing through the porous portion of the filter chamber.

5. A filter chamber having a porous wall and provided with a' floor that slopes from the central portion to theporouswall; a

hollow dam at the central portion of the floor, said hollow dam terminating above the top of the floor and provided with'an outlet therein, and a hollow cover for the hollow dam spaced apart from the dam to supported therein and arranged to distribonto the top ofthe filter material.

lite td the space below liquid falling on said distributing plate; said filterchamber having a hollow dam extendingup thereinto and said dam having an openingatthe top; a cap extending over said dam and forming a sluice-way between the dam and the sluice-cap, there' being apassage-from the filter chamber into the sluice-way; andfiltering material in vthe filter. chamber around said cap between the passage and the level of the top of, the dam, there-being an unobstructed air space above the cap and the distributing plate. 1

7. In .a'filter. a filter chamber having a hollow dam extending up from its floorand provided with a depressed top, and ham ing a hole in said depression to direct liquid into the free air space formed bythe hollow dam, there being filteringmaterial-in said filwr chamber; and means 'to form a sluice way communicating from said filtering material. to the top of the dam, there being a passage to said sluice-way near the floor of the filter chamber, and an unobstructed air space through which liquid may drop 8., A filter chamber provided with an out let above the floor of the chamber; means to "direct liquid from the lower part of the I filter chamber to said outlet; filter material between 'the inlet to said means and the level of-the outlet: the outer wall of said filter chamber having a pbroust portion to drain o'fi'vliquidfrom said filter chamber.

In testimony WhQIGOfy: I "have hereunto set myhand at-Los Angeles, California, this 22d day of April, I915.

DERRELL E BROWN.

' In presence of JAMps R.'TO'WNSEND 3 I ESTELLA' TowNsEND. 

